The original intent on my post was just to have a little fun but if I wanted to take a slightly more serious approach...
If I understand WvW, it's 3 servers of people fighting over stuff.
Assuming that you allow 100 people per server, then you end up only having a total of 300 people. I'm guessing that a lot more than 300 people want to play.
From my "research" I've determined that there is an upper limit to how much a server can do so it's not always just a matter of opening up more slots. You also have to think of the physical space we have to battle in. Right now it seems pretty big and even on reset night you can wander the map for a while before actually running into someone. You increase the number of people without giving them more space to play in, you'll end up with a different set of problems.
I will say that the only night I really have an issue is normally on reset nights but most of the time during the rest of the week, I get in without an issue regardless of the time of night or day. This means that during those times, there probably aren't enough people playing to provide some kind of balance.
I think that perhaps a change to the way the queue behaves might help. I'm not a very accomplished programmer so I'm not sure how easy it would be to set this up, but, this is what I might do. This would mostly be to handle those times when the maps are full or during reset.
There is no longer a "confirm" button to enter the queue. Maps "buttons" should have an indicator when the map is full so that when you click on the button, you know you are automatically going into the queue and will enter the map automatically as soon as space frees up. After you enter, you are given a button to push within X amount of time before your ejected. This is just to make sure you don't get anyone AFK taking up space. This would work the same even during a reset. There wouldn't be constant left clicking on a button to hopefully get in. You would click the button and since the server is unavailable then there are no slots on the map and you will enter the queue and be given a number. So while everyone is waiting for the reset to complete and the maps to open, you'll already be in a queue and know if your going to be one of the lucky few. Then if you find out your number 100, then you can decide to go off and do something else. This also could (maybe?) open up the possibility of offering them a second map. Something like "your place in the queue exceeds the number of slots available on this map. Would you like to queue for map2?"
I'm pretty sure gerbils and hamsters get along, so you could probably put them both on the same wheel....